Question

Unpolarized light is incident on a plane glass surface. The angle of incidence so that reflected and refracted rays are perpendicular to each other, then:

• A. $tan{i}_{\beta }=\frac{\mu }{2}$
• B. $tan{i}_{\beta }=\mu$
• C. $sin{i}_{\beta }=\mu$
• D. $cos{i}_{\beta }=\mu$

Answer 1

The correct option is B $tan{i}_{\beta }=\mu$

Brewster's law,

tan i= $\mu$

i is angle of incidence at which we get perfectly polarised reflected light.